<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="权益图标" prop="icon">
        <UploadImg v-model="formData.icon" />
      </el-form-item>
      <el-form-item label="权益名称" prop="name">
        <el-input v-model="formData.name" placeholder="请输入权益名称" />
      </el-form-item>
      <el-form-item label="权益类型" prop="type">
        <el-select v-model="formData.type" placeholder="请选择权益类型" clearable>
          <el-option
            v-for="dict in getIntDictOptions(DICT_TYPE.BENEFIT_TYPE)"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="关联元素" prop="relatedElement">
        <el-select v-model="formData.relatedElement" placeholder="请选择关联元素" clearable>
          <el-option
            v-for="dict in getIntDictOptions(DICT_TYPE.RELATED_ELEMENT)"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="标签" prop="tagIds">
        <MemberTagSelect v-model="formData.tagIds" :tag-list="tagList" show-add />
        <div v-if="tagList.length === 0" style="margin-top: 5px; font-size: 12px; color: #909399">
          <el-icon style="vertical-align: middle"><InfoFilled /></el-icon>
          请先选择权益类型和关联元素
        </div>
      </el-form-item>
      <!-- <el-form-item label="权益描述" prop="description">
        <Editor v-model="formData.description" height="150px" />
      </el-form-item> -->
      <el-form-item label="显示排序" prop="sort">
        <el-input v-model="formData.sort" placeholder="请输入显示排序" />
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-radio-group v-model="formData.status">
          <el-radio
            v-for="dict in getIntDictOptions(DICT_TYPE.COMMON_STATUS)"
            :key="dict.value"
            :value="dict.value"
          >
            {{ dict.label }}
          </el-radio>
        </el-radio-group>
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import { DICT_TYPE, getIntDictOptions } from '@/utils/dict'
import { BenefitApi, BenefitVO } from '@/api/member/benefit'
import * as TagApi from '@/api/member/tag'
import MemberTagSelect from '@/views/member/tag/components/MemberTagSelect.vue'

/** 会员权益 表单 */
defineOptions({ name: 'BenefitForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const tagList = ref<any[]>([]) // 标签列表
const formData = ref({
  id: undefined,
  icon: undefined,
  name: undefined,
  type: undefined,
  relatedElement: undefined,
  tagIds: undefined,
  description: undefined,
  sort: undefined,
  status: undefined
})
const formRules = reactive({
  name: [{ required: true, message: '权益名称不能为空', trigger: 'blur' }],
  type: [{ required: true, message: '权益类型不能为空', trigger: 'change' }],
  sort: [{ required: true, message: '显示排序不能为空', trigger: 'blur' }],
  status: [{ required: true, message: '状态不能为空', trigger: 'blur' }]
})
const formRef = ref() // 表单 Ref

/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await BenefitApi.getBenefit(id)
    } finally {
      formLoading.value = false
    }
  }
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as BenefitVO
    if (formType.value === 'create') {
      await BenefitApi.createBenefit(data)
      message.success(t('common.createSuccess'))
    } else {
      await BenefitApi.updateBenefit(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    icon: undefined,
    name: undefined,
    type: undefined,
    relatedElement: undefined,
    tagIds: undefined,
    description: undefined,
    sort: undefined,
    status: undefined
  }
  tagList.value = [] // 清空标签列表
  formRef.value?.resetFields()
}

/** 监听权益类型和关联元素的变化,获取对应的标签列表 */
watch(
  () => [formData.value.type, formData.value.relatedElement],
  async ([type, relatedElement]) => {
    // 清空标签列表和已选标签
    tagList.value = []
    formData.value.tagIds = undefined

    // 只有两个字段都有值时才调用接口
    if (type !== undefined && relatedElement !== undefined) {
      try {
        const tag = await TagApi.getTagByTypeAndRelatedElement(type, relatedElement)
        // 如果获取到标签,填充到标签列表中
        if (tag && tag.id) {
          tagList.value = [tag]
        }
      } catch (error) {
        console.error('获取标签失败:', error)
      }
    }
  }
)
</script>
